1. DEVCOM U.S. Army Research Laboratory (ARL), Adelphi, MD, USA
2. USC Institute for Creative Technologies, Los Angeles, CA, USA
3. Department of Computer Science and the Department of Psychology, Northeastern University, Boston, MA, USA
4. Centre National de Recherche Scientifique-Institut de Systèmes Intelligents et de Robotique (CNRS-ISIR), Sorbonne University, Paris, France